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Investigational New Drugs

, Volume 21, Issue 1, pp 75–84 | Cite as

A Phase I and Pharmacologic Study of Pyrazoloacridine and Cisplatin in Patients with Advanced Cancer

  • E. Claire Dees
  • Eric K. Rowinsky
  • Dennis A. Noe
  • Seamus O'Reilly
  • Alex A. Adjei
  • Kathy Elza-Brown
  • Ross C. Donehower
Article

Abstract

Pyrazoloacridine (PZA, NSC366140, PD115934) is an acridine derivative currently undergoing clinical evaluation. In preclinical testing, PZA has shown selectivity for solid tumor cell lines, activity in hypoxic, noncycling, and multidrug-resistant cell lines, and synergy with cisplatin in a variety of lung cancer cell lines. In early phase I clinical studies PZA has shown modest activity in ovarian, cervical, and colon cancer. The purpose of the present study was threefold: to determine the maximally tolerated doses of the combination of PZA (3-h infusion) and cisplatin administered with and without Filgrastim (G-CSF) (Amgen, Thousand Oaks, CA) every 3 weeks in untreated or minimally pretreated patients, to describe and quantify the clinical toxicities of combination chemotherapy with PZA and cisplatin, and to evaluate the effects of drug sequencing on the toxicity profile and pharmacologic behavior of PZA. The starting doses in this dose-escalation trial were PZA 400 mg/m2 as a 3-h intravenous infusion and cisplatin 50 mg/m2 as a 1 mg/min intravenous infusion. The sequence of drugs was alternated with each successive course in each patient treated. Twenty-one patients with refractory solid tumors received 43 courses of therapy through four dose levels. Neutropenia was dose-limiting and defined the maximum tolerated dose of PZA 400 mg/m2 and cisplatin 50 mg/m2 without G-CSF support. With G-CSF support, nausea and vomiting were dose-limiting. The maximum tolerated and recommended doses for further study of this combination are PZA 600 mg/m2 over 3 h and cisplatin 50 mg/m2 followed by G-CSF support. Pharmacokinetic analysis showed that sequence does not impact on the pharmacokinetics of PZA when given in combination with cisplatin.

pyrazole acridine dose-escalation pharmacokinetics sequence 

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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • E. Claire Dees
    • 1
  • Eric K. Rowinsky
    • 2
  • Dennis A. Noe
    • 3
  • Seamus O'Reilly
    • 4
  • Alex A. Adjei
    • 5
  • Kathy Elza-Brown
    • 6
  • Ross C. Donehower
    • 6
  1. 1.Division of Hematology and OncologyThe University of North Carolina at Chapel HillChapel HillUSA
  2. 2.Institute for Drug Development, Cancer Therapy and Research Center, andThe University of Texas Health Science Center at San AntonioSan AntonioUSA
  3. 3.Department of Cell BiologyYale UniversityNew HavenUSA
  4. 4.Waterford Regional HospitalWaterfordIreland
  5. 5.Mayo ClinicDivision of Medical OncologyRochesterUSA
  6. 6.Johns Hopkins Oncology CenterBaltimoreUSA

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